变革型模式适用于（）的企业集团。

A.战略性

B.合作型

C.增长型

D.环境确定性较大

—Jack won the first place in the writing competition.

—_______. He had prepared for it for a long time.

A．Better late than never

B．A good beginning is half done

C．Practice makes perfect

D．Many hands make light work